Astronomers have found what may be the heaviest, biggest, and brightest star ever observed. The star, known as LBV 1806-20, may weigh more than 150 times as much as the sun, span 200 times its width, and shine up to 40 million times as brightly.
Residing 45,000 light-years from Earth and blocked by dust, the star appears dim in visible light.
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